eastwick



v 2 Sheets-Sheet 1. E. P. EASTWIGK. BONE BLACK KILN.

No. 60,492. Patented Dec. 18, 1866.

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E. P. EASTWIGK. BONE BLACK KILN.

Patented Dec. 18, 1866.

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TO ALL WHOM IT MAY CON OERN Be it known that I, EDWARD P. EASTWICK, ofthe city of Baltimore, in the State of Maryland, have invented a new anduseful Improvement in Bone-Black Kilns, used in the manufacture andrefining of sugar. for the purpose of revivifying the animal charcoalused in the process, by rcburning the same.

My invention consists in connecting two or more vertical retorts in suchmanner that the upper retort will not rest on the lower retort, but beindependently supported.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation. I

In the accompanying drawings, Plate I, Figure N o. 1, represents avertical section of a bone-black kiln, having upper chambers, A A, andlower chambers, B B, the former containing the upper retorts R, and thelatter the lower retorts R R. Theupper retorts R R each set upon abed-plate and adapter, C C, which consists of a flange, a rim, and aneck, and which rests by its flange, P P,.in the floors, F. F, of theupper chambers, A A, reference being had to Plate II, Figure No. 2,which represents said bed-plate and adapter horizontally on top;

and to Plate II, Figure N 0. 3, which represents a vertical section ofthe same; and to Plate II, Figure No. 4, which represents the samehorizontally as seen from beneath. This bed-plate and adapter may be aniron plate, with an opening, 0, running through its centre,corresponding in dimension with the opening of theretort R, with a neck,N N, extending down three or more inches, and adapted to enter into thebell-end of the lower retort R. On the upper side of the bed-platc andadapter is a rim, D D, two or more inches high, and sufliciently backfrom the opening 0 to form on the inside a socket, S S, to receive theupper retort R. In making the'connection between the upper and lowerretorts, the floor, F F, of the upper chamber (supported by iron bracesor otherwise) is built with brick, close around the bell or upper end ofthe lower retort, R, one or more inches higher than the top of it, asrepresented in plate I, fig. No. 1, and Plate II, fig. No. 3. Thebed-plate and adapter is then placed on the floor F F, on its flange PP, the neck N N, extending down into the hell or upper end of the lowerretort, R, in such a manner that a space, I l, in Plate I, fig. No. 1,and L L, in Plate II,

fig. No. 3, is left between the bottom of the flange of the bed-plateand adapter and the top of the lower retort,

R, which allows expansion room for the latter when heated. The bottom ofthe upper retortR, resting in the sockets S S of the bed-plate, is lutcdand built around with brick. The lower retort, R, may not necessarily bebell-shaped at top, but of dimensions to admit of the bed-plate andadapter either on the inside or outside of its upper end. This bed-plateand adapter, or coupling, maybe used with any number of retortsvertically connected. The advantages which this mode of connectionpossesses over others which have been used is, that the ,rctorts may beso separated from each other as to allow the lower retort, whichreceives the greater heat, to

expand independently, which makes it less liable to spring and crack,and renders the use of double-chambered kilns more practicable than whenthe retorts were otherwise connected as heretofore, and also insuresgreater durability and economy. I

What I claim as my invention, and desire to-secureby Letters Patent,is-- The connecting two or more vertical retorts by means of interveningbed-plates and adapters or couplings, resting in the floor of the upperchamber of the bone-black kiln, supporting the upper retortsindependently, and allowing a separate expansion and contraction of thelower retorts, substantially as herein described.

EDW'D P. EASTWIOK.

Witnesses:

Gno. S. Wns'r, ANDREW LONGAORE.

